The right-hander pinched something in the back of his shoulder while taking swings in the batting cage at Nationals Park on April 8. He was scheduled to start the next day, but was placed on the 15-day disabled list, retroactive to April 4.

"It's definitely gotten better over the last couple of days," Turner said. "I've been able to do everything pain free the last three days."

The 22-year-old right-hander is on the disabled list for the first time in his career.

"It was kind of a freak thing," Turner said. "I took a swing. I just felt something. It's in the back of the shoulder."